类型IIb超新星2001ig的后事调查
天体物理学
2011-03-10 v1
摘要
我们采用Gemini-South上的GMOS仪器拍摄的图像(视场优秀(<0.5 arcsec)),对SN 2001ig在NGC 7424中约1000天爆炸后的情况进行观测。我们观察到的一颗点状源,其颜色与作为H II区或类1993J式残留物不一致,但可匹配为晚期B至晚期F型超巨星,其视界吸收系数A_V<1。我们认为该对象是负责Wolf-Rayet前体星周围质量损失物质周期性调制的巨型双星伴星,这导致SN射电光度曲线出现显著结构。
关键词
引用
@article{arxiv.astro-ph/0603336,
title = {A postmortem investigation of the Type IIb supernova 2001ig},
author = {Stuart D. Ryder and Clair E. Murrowood and Raylee A. Stathakis},
journal= {arXiv preprint arXiv:astro-ph/0603336},
year = {2011}
}
备注
5 pages, 3 figures. Accepted for publication in MNRAS Letters. Fig. 1 resolution degraded to meet size limitations; full resolution version available from http://www.aao.gov.au/local/www/sdr/pubs/sn2001ig_gmos.ps.gz